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Syntheses and proton conductivity of mesoporous Nd2O3-SiO2 and NdOCl-SiO2 composites

Research output: Contribution to journalArticle

Author(s)

Wenbo Yue, Xiaoxiang Xu, Zixue Su, John Thomas Sirr Irvine, Yongcun Zou, Yunling Liu, Wuzong Zhou

School/Research organisations

Abstract

Two mesoporous oxide composites of Nd2O3-SiO2 and NdOCl-SiO2 were synthesized using SBA-15 as a template and neodymium nitrate or neodymium chloride as a precursor. The porous Nd2O3-SiO2 with a SBA-15-like structure has amorphous walls and the porous NdOCl-SiO2 with a replicated structure of SBA-15 has crystalline walls. These porous materials were characterized by X-ray diffraction, transmission electron microscopy and nitrogen adsorption/desorption. They exhibited significant proton conductivities in the presence of moisture at low temperatures and the highest conductivity observed was 4.55 x 10(-4) S/cm at 47 A degrees C in wet air (RH = 28.6%).

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Original languageEnglish
Pages (from-to)2146-2154
Number of pages9
JournalJournal of Materials Science
Volume47
Issue number5
DOIs
Publication statusPublished - Mar 2012

    Research areas

  • SOL-GEL PROCESS, NEODYMIUM OXIDE, METAL-OXIDES, THIN-FILMS, INTERMEDIATE TEMPERATURE, CARBON FRAMEWORKS, SILICA, SURFACTANT, CATALYSIS, TIO2

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